Schematics Low-Ripple Power Supply


Posted on Feb 5, 2014

This circuit can be used where a high current is required with a low-ripple voltage (such as in a high-powered class AB amplifier when high-quality reproduction is necessary). Q1, Q1 and R2 can be regarded as a power Darlington transistor. ZD1 and R1 provide a reference voltage at the base of Q1. ZD1 should be chosen thus: ZD1=Vout-1. 2. C2 can be


Schematics Low-Ripple Power Supply
Click here to download the full size of the above Circuit.

chosen for the degree of smoothness as its value is effectively multiplied by the combined gains of Q1/Q2, if 100uF is chosen for C2, assuming minimum hfe for Q1 and Q2, C=100x15(Q1)x25(Q2)=37, 000uF.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    wide range current pumps for precision
    responsive architecture
    Ind Meter Adapter
    Waging the War on Power in 3G Mobiles
    Speed of Light with Nanosecond Pulsed 650 nm Diode Laser
    Electrocardiagram (ECG / EKG) for DrDAQ Data Logger



    Top